Efficient total syntheses of (±)-vincadifformine and (−)-tabersonine
作者:Satoshi Kobayashi、Ge Peng、Tohru Fukuyama
DOI:10.1016/s0040-4039(98)02667-7
日期:1999.2
Stereocontrolled biomimetictotalsyntheses of the title compounds are described. Our syntheses feature a highly efficient preparation of the key intermediate 11 using our novel indole synthesis methodology. A novel amine protecting protocol by means of 2,4-dinitrobenzenesulfonamides has been developed to ensure the formation of the elusive secodine (3) as well as secodine-type intermediate (4) under
Intermediates for synthesis of vinblastine compound and method for synthesizing the intermediate
申请人:——
公开号:US20040034217A1
公开(公告)日:2004-02-19
Intermediates A, which are important in the whole synthesis of vindoline; and a method of synthesizing intermediates respectively represented by the general formulae B and C. By the method, the target intermediates are effectively synthesized with satisfactory reproducibility. This synthesis method is especially suitable for mass production. General formula A General formula B General formula C
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